网站首页  词典首页

请输入您要查询的英文单词:

 

单词 perihelion
释义

perihelion

听听怎么读
英 [?per?'hi:l??n]
美 [?per?'hil?rn]
是什么意思
  • n.

    近日点;

  • 变形

    复数:perihelia

    英英释义

    perihelion[ 'peri'hi:li?n ]

    • n.periapsis in solar orbit; the point in the orbit of a planet or comet where it is nearest to the sun
    学习怎么用

    双语例句

    用作名词(n.)
    1. A comet is at perihelion when it is closest to the sun.
      彗星最接近太阳时,它就是在近日点。
    2. The anomalistic year is the time between successive transits of the Earth through the perihelion.
      近点年是地球连续两次通过近日点之间的时间。

    权威例句

    Post-perihelion observations of water in comet Halley
    Mercury's Perihelion from Le Verrier to Einstein by N. T. Roseveare
    On the recently determined anomalous perihelion precession of Saturn
    Activity of comets at large heliocentric distances pre-perihelion
    Photochemistry of Pluto's atmosphere and ionosphere near perihelion
    Photometric behavior of comet Hale-Bopp (C/1995 O1) before perihelion.
    The NASA Infrared Telescope Facility Comet Halley Monitoring Program II. Post-Perihelion Results
    Excess open solar magnetic flux from satellite data: 1. Analysis of the third perihelion Ulysses pass
    Optical Observations of Comet Hale-Bopp (C/1995 01) at Large Heliocentric Distances Before Perihelion
    Solar quadrupole moment and purely relativistic gravitation contributions to Mercury's perihelion advance
    随便看

     

    英语词典包含168364条英汉在线翻译词条,基本涵盖了全部常用单词的翻译及用法,是英语学习的有利工具。

     

    Copyright © 2010-2024 Sijigu.com All Rights Reserved
    京ICP备2021023879号 更新时间:2024/11/8 23:22:09